<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>task24</title>
    <link rel="stylesheet" href="style.css" type="text/css">
</head>
<body>
<section>
    <div id="root">
        super
        <div>
            car
            <div>
                Apple
                <div>
                    Pear
                </div>
                <div>
                    Pig
                </div>
                <div>
                    Cola
                </div>
                <div>
                    Soccer
                </div>
            </div>
            <div>
                Phone
            </div>
            <div>
                <div>
                    Book
                </div>
                <div>
                    School
                </div>
            </div>
        </div>
        <div>
            Note
            <div>
                Human
                <div>
                    Code
                </div>
                <div>
                    Operate
                </div>
                <div>
                    Man
                </div>
            </div>
            <div>
                Program
                <div>
                    Bement
                    <div>
                        Cat
                    </div>
                </div>
                <div>
                    Glass
                </div>
            </div>
        </div>
        <div>
            Fish
        </div>
    </div>
</section>
</br>


<input type="button" value="深度遍历">
<input type="button" value="广度遍历">
<input type="text" placeholder="待检测的字符">
<input type="button" value="深度遍历搜索">
<input type="button" value="广度遍历搜索"></br></br>
<input type="button" value="删除">
<input type="text" placeholder="添加的字符">
<input type="button" value="添加">
</body>
<script src="task24.js"></script>
</html>